The graben starts from Shizuishan in the north and reaches Qingtongxia in the south, with a length of about 160 km and a maximum width of 55 km. The east and west sides of the graben are controlled by the Yellow River fault and the eastern foot fault of Helan Mountain respectively. There are also two large faults in the graben, namely Luhuatai fault and Yinchuan-Pingluo fault. These four faults control the formation and development of Yinchuan graben. An earthquake of magnitude 3 or above occurred in the graben of surrounding counties and cities, which had an impact on Yinchuan city; An earthquake of magnitude 6 or above in the graben will cause damage to the urban area.
There have been many destructive earthquakes in history: in the thirteenth year of Shaoxing in the Southern Song Dynasty (1 143), an earthquake of magnitude 6 occurred; In the third year of Baoqing in the Southern Song Dynasty (1227), an earthquake of magnitude 5.5 occurred. In the 13th year of Chenghua in the Ming Dynasty (1477), an earthquake of magnitude 6.5 occurred, all with an intensity of 8 degrees. Especially in the 4th year of Qianlong (1739), the magnitude of Yinchuan-Pingluo M8 earthquake was 10 degrees, which destroyed the ancient city of Yinchuan. This is the biggest catastrophic earthquake in the history of Yinchuan Plain. Xingqing district is rich in surface water resources, good in water quality, rich in sediment and fertile in land. There are many ditches, lakes and wetlands in this area. The Yellow River is the main river in Yinchuan, which flows through Yinchuan for more than 80 kilometers and runs through the north and south. The Yellow River gravity irrigation has been introduced into Yinchuan Plain for more than 2000 years. The main canal of Yellow River Diversion includes Tanglai, Han Yan, Huinong and Gan Xi, with an annual water diversion capacity of 1 100 million cubic meters. There are more than 0/000 irrigation and drainage channels/kloc-which are thousands of kilometers long, forming a complete irrigation and drainage system combining irrigation and drainage, and ensuring the irrigation of more than 0/0.3 million hectares of farmland.
Historically, due to the continuous diversion of the Yellow River, there are many lakes and wetlands. There was a saying of "seventy-two lakes" in ancient times, but now it has the reputation of "Lake City on the Plug". There are 39,700 hectares of wetlands in the city, mainly lake wetlands and river wetlands, of which natural wetlands account for more than 60% of the wetland area, nearly 200 natural lakes and more than 20 lakes, with an area of 100 hectares. The famous ones are Cuiming Lake, Yuehai Lake, Hequan Lake, Hubao Lake and West Lake. In 20 13 years, the added value of industrial enterprises above designated size was 4921600 million yuan, an increase of 12.4% over the previous year. Among them, the added value of large and medium-sized enterprises in the city was 40.32 billion yuan, an increase of 10.7%. In terms of light and heavy industries, the added value of light industry was 7.954 billion yuan, an increase of11.7%; The added value of heavy industry was 410.262 billion yuan, an increase of 12.5%. [3] In 2013 years, the sales output value of industrial enterprises above designated size was 1868 10 billion yuan, an increase of 15.4% over the previous year, and the sales rate of industrial products was 97.8%; The main business income of industrial enterprises178.239 billion yuan, an increase of15.0% over the previous year; The main business cost was 65.438+04.793 billion yuan, up 654.38+05.5% year-on-year.
In 20 13, the total retail sales of social consumer goods reached 34.806 billion yuan, an increase of 12.2% over the previous year. The total import and export volume reached $24 1, 1 billion, an increase of 80.9% over the previous year. Among them, the total export value was US$ 2.078 billion, up by 9.91%; The total import value was USD 333 million, up 15.4% year-on-year. [3] At the end of 2013, the balance of RMB deposits in financial institutions was 234.093 billion yuan, an increase of 1 1.0% over the end of last year.
In 20 13 years, it received 798.6438+00000 domestic tourists, with a year-on-year increase of14.7%; Overseas tourists received18,300 person-times, up 33 1% year-on-year. Domestic tourism income was 73 1. 1 100 million yuan, an increase of 24.9%; The foreign exchange income of international tourism is 8745654.38 USD +0.000, increasing by 1.2 times.
Xingqing district is dominated by Yellow River cultural tourism, with desert tourism as a hot spot, featuring Hui cultural customs, and taking frontier culture and western customs as components. It is divided into nine functional development zones: "Huangsha Ancient Crossing, Desert Ecology, Western Desert, Yellow River Culture, Hui Culture, Historical Humanities, Yellow River Drifting, Yellow River Wetland Protection and Original Ecology Protection".